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A habitable fluvio-lacustrine environment at Yellowknife Bay, Gale Crater, Mars
Division of Geological and Planetary Sciences, California Institute of Technology.
Department of Earth and Planetary Sciences, University of California, Davis.
Department of Earth and Planetary Sciences, University of Tennessee, Knoxville.
Division of Geological and Planetary Sciences, California Institute of Technology.
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Number of Authors: 742014 (English)In: Science, ISSN 0036-8075, E-ISSN 1095-9203, Vol. 343, no 6169, article id 1242777Article in journal (Refereed) Published
Abstract [en]

The Curiosity rover discovered fine-grained sedimentary rocks, which are inferred to represent an ancient lake and preserve evidence of an environment that would have been suited to support a martian biosphere founded on chemolithoautotrophy. This aqueous environment was characterized by neutral pH, low salinity, and variable redox states of both iron and sulfur species. Carbon, hydrogen, oxygen, sulfur, nitrogen, and phosphorus were measured directly as key biogenic elements; by inference, phosphorus is assumed to have been available. The environment probably had a minimum duration of hundreds to tens of thousands of years. These results highlight the biological viability of fluvial-lacustrine environments in the post-Noachian history of Mars.

Place, publisher, year, edition, pages
2014. Vol. 343, no 6169, article id 1242777
National Category
Aerospace Engineering
Research subject
Atmospheric science
Identifiers
URN: urn:nbn:se:ltu:diva-3042DOI: 10.1126/science.1242777ISI: 000330039300002Scopus ID: 2-s2.0-84892915301Local ID: 0cb80b8c-7225-43a7-a192-2baef7f251beOAI: oai:DiVA.org:ltu-3042DiVA, id: diva2:975898
Note

Upprättat; 2014; Bibliografisk uppgift: Javier Martín-Torres ingår i the MSL Science Team.; 20150303 (ninhul)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2019-05-14Bibliographically approved

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